Dissolving Experiment Worksheet: Warm and Cold Water

Science experiments lesson 3: Dissolving sugar: warm vs cold water · Set 176 · 40 questions

What you do (Warm, stir, small): 1. An adult pours the same amount of warm water and cold water into two glasses. 2. Add one level teaspoon of sugar to each at the same time. 3. Stir each the same number of times and time how long the sugar takes to vanish. 4. Look, do not taste — then compare the two times.

1. 1.🥄 Does sugar in icy water dissolve faster or slower? (a) slower (b) faster
2. 2.True or false: a balloon is not needed for the dissolving test. (a) False (b) True
3. 3.🔍 Sand is stirred into water. What do you see after a while? (a) it turns blue (b) it dissolves (c) it floats up (d) it settles at the bottom
4. 4.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the water temperature”? (a) we keep it the same (b) we measure it (c) we change it
5. 5.🥄 Which of these dissolves slower? (a) sugar left unstirred (b) powdered sugar (c) sugar stirred well (d) sugar in warm water
6. 6.🥄 Does table salt dissolve in water? (a) dissolves in water (b) does not dissolve
7. 7.🥄 Does cooking oil dissolve in water? (a) dissolves in water (b) does not dissolve
8. 8.🧺 Do we need a teaspoon for the dissolving test? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) two clear glasses (b) sugar (c) a balloon (d) cold water
10. 10.🧺 Do we need cold water for the dissolving test? (a) needed (b) not needed
11. 11.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a magnet (c) cold water (d) sugar
12. 12.True or false: small pebbles dissolves in water. (a) True (b) False
13. 13.🔍 Sugar is stirred into water and seems to disappear. Where did it go? (a) it sank as sand (b) it became air (c) it spread in the water (d) it vanished for ever
14. 14.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the water temperature is kept the same. (a) True (b) False
15. 15.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? Which of these is what we measure? (a) the water temperature (b) time to dissolve (c) the kind of sugar (d) the stirring
16. 16.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “time to dissolve”? (a) we keep it the same (b) we measure it (c) we change it
17. 17.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) cotton wool (b) cold water (c) a teaspoon (d) a clock or timer
18. 18.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? What do we do with “the stirring”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.True or false: two clear glasses is not needed for the dissolving test. (a) False (b) True
20. 20.⚖️ Fair test — does sugar dissolve faster in warm water or in cold water? True or false: the amount of water is kept the same. (a) True (b) False
21. 21.🧺 Which of these is not needed for the dissolving test? (a) warm water (b) a balloon (c) sugar (d) cold water
22. 22.🥄 Does sugar left unstirred dissolve faster or slower? (a) faster (b) slower
23. 23.True or false: baking soda dissolves in water. (a) False (b) True
24. 24.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) two clear glasses (c) a mirror (d) a comb
25. 25.True or false: sugar stirred well dissolves faster. (a) False (b) True
26. 26.True or false: cotton wool is needed for the dissolving test. (a) False (b) True
27. 27.🥄 Does a big sugar cube dissolve faster or slower? (a) slower (b) faster
28. 28.🔮 Predict: does stirring make sugar dissolve faster or slower? (a) not at all (b) slower (c) the same (d) faster
29. 29.🥄 Does sugar stirred well dissolve faster or slower? (a) faster (b) slower
30. 30.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a mirror (b) two clear glasses (c) cold water (d) warm water
31. 31.🔮 Predict: which dissolves faster — a sugar cube or the same amount of powdered sugar? (a) both the same (b) powdered sugar (c) neither of them (d) the sugar cube
32. 32.🥄 Which of these dissolves in water? (a) sand (b) food colour (c) small pebbles (d) chalk powder
33. 33.🔍 Which is the odd one out? (a) table salt (b) food colour (c) sawdust (d) glucose powder
34. 34.🧺 Which of these is needed for the dissolving test? (a) cotton wool (b) a magnet (c) a clock or timer (d) a comb
35. 35.🔍 How can you get the salt back from salty water? (a) stir it more (b) keep it in a fridge (c) let the water evaporate (d) add more water
36. 36.🧺 Do we need warm water for the dissolving test? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the dissolving test. Which one is NOT needed? (a) a teaspoon (b) a comb (c) sugar (d) cold water
38. 38.🥄 Which of these dissolves faster? (a) sugar left unstirred (b) sugar in icy water (c) sugar in warm water (d) a big sugar cube
39. 39.🔍 Which is the odd one out? (a) table salt (b) baking soda (c) glucose powder (d) cooking oil
40. 40.🥄 Does powdered sugar dissolve faster or slower? (a) slower (b) faster

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